Title:
フッ素化剤としてフッ化カルバモイルを使用する方法
Document Type and Number:
Japanese Patent JP4563647
Kind Code:
B2
Abstract:
The invention concerns a method for using a carbamoyl fluoride as fluorinating agent. Said method consists in treating a derivative bearing a halogen-containing carbon, with a carbamoyl fluoride at a temperature not less than 70 ° C. and in maintaining the ratio between the sum of hydrofluoric acid (HF) and carbamoyl fluoride as well as between the sum of exchangeable halogen atoms, isocyanate functions and carbamoyl fluoride [(HF+carbamoyl fluoride)/(exchangeable halogen+isocyanate+carbamoyl fluoride)] at a value not more than 1.2; then in carrying out a catalysis process with tin, antimony and/or titanium salt. The invention is applicable to synthesis of fluorinated derivatives.
Inventors:
Saint-Jarm, Laurent
Shannan, Bangsan
Guido, Gilbert
Camp, Hubert
Shannan, Bangsan
Guido, Gilbert
Camp, Hubert
Application Number:
JP2002556160A
Publication Date:
October 13, 2010
Filing Date:
January 10, 2002
Export Citation:
Assignee:
RHONE-POULENC CHIMIE
International Classes:
C07C265/12; C07B39/00; C07B61/00; C07C263/16
Domestic Patent References:
| JP60226828A | ||||
| JP7145115A |
Foreign References:
| GB955898B |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi